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This drive recognizes almost all formats of CD & DVDs available in the market
The drive can read and write the following media
1. Write CD R / CDRW / Read CD , CDR, and CDRW
2. Read & Write DVD +R, DVD -R, DVD +-R, DVD RW / Dual layer DVD.
Normal drives will be specific to only DVD +R or DVD -R or single layer.
It means it supports DVD+RW, DVD-RW, DVD+R DL, DVD+R, DVD-R, DVD-RAM, CD-R, CD-RW
Dual layer DVD's have two data layers stacked on top of each other. So instead of holding only 4.7 gb of data it holds 8.5
Here the recording spec for the drive It quotes double layer so it should be able to do up to 8.8 GB which is way way way way bigger than 4.37 mb. DVD+R (DVD+R Part 1 Single Layer, Basic Format Spec Ver 1.3) / DVD+RW (Single Layer, Volume1: 4X Basic Format Spec Ver 1.3 and Single Layer, Volume2: 8X Basic Format Spec Ver 1.0) / DVD+R DL (DVD+R Part 2, Double Layer: Basic Format Spec Ver 1.0) / DVD-R General (Ver 2.0 and 2.1) / DVD-RW (Ver 1.1 and 1.2) /DVD-R DL (Ver 3.0)/ DVD-RAM (Ver V2.0 and 2.1 and 2.2 Class 0 ; Single side :4.7 GB/1.4 GB ; Double side :9.4 GB/2.8 GB) and CD-R/CD-RW media
It sounds more like your burning laser went out. DVD and CD Roms use two seperate lasers. One for reading and one for writing. I would check with the manufacturer to see if it is still under warranty to have it replaced
Disconnect the Lacie dvd drive, then reconnect it and open "system profiler" to see if the drive is now recognized under "firewire" or USB depending on your connection. If that doesn't work disconnect all peripherals and turn off your mac for 5 minutes. Start reconnecting your devices one by one.
Yeah I have a solution ... personally I found DVD-R better to write dvd's to if its general data or copied DVD's but some drives are DVD+R specific so find out what drive ya got and pick the right media for it dude